The figure below shows a satellite receiver uses two hytrodyne operations. It is used to receive transmissions at 136 MHz. the first local oscillator operates below the incoming carrier frequency, while the second operates above the first IF frequency. Find all possible image frequencies.

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I need answer within 30 minutes please with my best wishes Ali
H.W:
The figure below shows a satellite receiver uses two hytrodyne operations. It
is used to receive transmissions at 136 MHz. the first local oscillator operates
below the incoming carrier frequency, while the second operates above the
first IF frequency. Find all possible image frequencies.
First IF
Second IF
Detector
RF
(X)
amp.
amp
and
o/p
amp.
(30 MHz)
(10 MHz)
amp
Second
local
First
local
oscillator
oscillator
ans:
76 MHz
156 MHz
56 MHz
Transcribed Image Text:H.W: The figure below shows a satellite receiver uses two hytrodyne operations. It is used to receive transmissions at 136 MHz. the first local oscillator operates below the incoming carrier frequency, while the second operates above the first IF frequency. Find all possible image frequencies. First IF Second IF Detector RF (X) amp. amp and o/p amp. (30 MHz) (10 MHz) amp Second local First local oscillator oscillator ans: 76 MHz 156 MHz 56 MHz
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